US PATENT SUBCLASS 8 / 588
.~.~ Sulfonic acids or sulfonic acid esters

Current as of: June, 1999
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8 /   HD   BLEACHING AND DYEING; FLUID TREATMENT AND CHEMICAL MODIFICATION OF TEXTILES AND FIBERS

550  DF  ORGANIC ADDITIVE FOR DYE COMPOSITION, DYE COMPOSITION CONTAINING ORGANIC ADDITIVE, PROCESS OR PRODUCT; OTHER THAN EMULSIFIER, PH ADJUSTER OR STARCH OR GUM PRINT PASTE THICKENER {24}
587  DF  .~ Sulfur-containing {3}
588.~.~ Sulfonic acids or sulfonic acid esters {2}
589  DF  .~.~.~> Aromatic {1}
591  DF  .~.~.~> Acyclic

DEFINITION

Classification: 8/588

Sulfonic acids or sulfonic acid esters:

(under subclass 587) Subject matter wherein the organic additive contains a sulfonic acid or sulfonic acid ester group.